Refrigerator fan



FIG. 1 is a front, top, right perspective view of a refrigerator fan according to the invention;

FIG. 2 is a front elevational view according to the invention; and,

FIG. 3 is a top plan view according to the invention; and,

FIG. 4 is bottom plan view according to the invention; and,

FIG. 5 is left side elevational view according to the invention; and,

FIG. 6 is a right side elevational view according to the invention.

The broken lines illustrate portions of the refrigerator fan and form no part of the claimed design. 

CLAIM The ornamental design for a refrigerator fan, as shown and described. 